The "egg"(henceforth referred to as a Beherit) apostle sacrificed his world. An impossibility. What was sacrificed what it's "interface with the world" or its own body. The Godhand didn't need to collect at the time. It would have made the sacrifice equal to suicide. The sacrifice ended up being its life, the tower, and the surrounding area.

The Beherit's wish was to give birth to a new world. Thus Griffith’s new human form.

temporary

The "egg"(henceforth refered to as a Beherit) apostle sacrificed his world. An imposiblity. What was sacrificed what it's "interface with the world" or its own body. The godhand didn't need to collect at the time. It would have made the sacrifice = suicide. The sacrifice ended up being its life, the tower, and the surounding area.

The Beherit's wish was to give birth to a new world. Thus Griffiths new human form.